Improved window-screen



` side ofthe screen is secured.

top by the hook Z.

UNITED STATES PATENT OFFICE.

ALBERT JOSSELYN, OF PEMBROKE, MASSACHUSETTS.

IM PROVED WI NDOW'SCREEN.

Specification forming part of Letters Patent No. 43,855, dated August 16, 1854.

To @ZZ whom it may concern:

Be it known that l, ALBERT J o'ssELYN, of Pembroke, in the county of Plymouth and State of Massachusetts, have invented a new and Improved Mosquito-Screen, adjustable lo windows ot' various widths; and the following description, with the accompanying drawings, forms a full, clear, and exact specitieation thereof.

Similar' letters represent similar parts in all the views.

Figure l is an inside view of the window and screen. Fig. 2 is a horizontal section on line A B ot' Fig. 1. Fig. 3 is a horizontal section on line U D of Fig. 1.

a represents the window-sash; b, the inner bead; c, the screen of millinett or other suitablc fabric.

d is a stile ot wood, to which the left-hand This stile is fastened to the window-jamb at the bottom by means of the stud e and pin j', and at the top by the hook g. The right-hand side of the screen is secured to the roller h, which, togcther with the idle-roller i, is set in the metallic frame or stock j. This metallic stock j is secured to the windowjamb at the bottom by means of a slot and pin at k, and at the The office of the idle-roller z' is to keep the screen closely fitting to the window-sash, to prevent the ingress of vermin notwithstanding any amount of cloth may be Wound on the roller h, which couldnot be accomplished with a single roller Without binding. Another advantage is that the Windowsash slides freely independent of the screen. After the sides are fastened to the window; jambs the screen is adjusted to the Width by the crank m, and held at the required tension by the ratchet-wheel n, the pawl o, and spring p, all of which clearly appears by the drawings. screens can be taken down, rolled up, and laid away, and occupy much less room than the ordinary frames, in addition to the advantages before mentioned of adaptation to openin gs of various widths.

Having thus described claim- The combination and arrangement of the screen c, the stile d, the stock j, the rollers h and t', and the ratchet-wheel n and the pawl o, as an improved mosquito screen, adapted-and adjustable to windows of various widths7 substantially as set forth and described.

my improvement, I

ALBERT JOSSELYN.

Vitiiesses:

WM. H. H. BRYANT, lsAAe T. LORING.

When the season of vermin is over, the 

